56450431 has 4 divisors (see below), whose sum is σ = 57651552. Its totient is φ = 55249312.

The previous prime is 56450413. The next prime is 56450447. The reversal of 56450431 is 13405465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56450431 - 2¹⁵ = 56417663 is a prime.

It is a super-2 number, since 2×56450431² = 6373302320171522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56450431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56450231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600490 + ... + 600583.

It is an arithmetic number, because the mean of its divisors is an integer number (14412888).

Almost surely, 2^56450431 is an apocalyptic number.

56450431 is a deficient number, since it is larger than the sum of its proper divisors (1201121).

56450431 is a wasteful number, since it uses less digits than its factorization.

56450431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201120.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 56450431 is about 7513.3501848377. The cubic root of 56450431 is about 383.6092646373.

Adding to 56450431 its reverse (13405465), we get a palindrome (69855896).

The spelling of 56450431 in words is "fifty-six million, four hundred fifty thousand, four hundred thirty-one".